Look at this Transaction^[1]. It paid 15x more than it was necessary to get confirmation. It paid $38.77 in fees for transaction that worth $180. If you have a look at old transactions of this wallet, it was always paying optimal fees.
I don't really know what happened there, while it paid 5x more than recommended, actually $10.56 was spent in fees while transacted amount was $1.41, check: Transaction^[2]
And here - Transaction^[3], someone even paid 56x more.

Is this done on purpose by some miners to increase the overall transaction fees and collect more fees?